HTTP relay infrastructure
Built to carry
your traffic.
Built to earn
your trust.
EchoRelay is the relay layer between your callers and your services. Authenticate. Validate. Fan out. Retry. Deliver — without writing a single line of glue code.
The idea
A new kind of
middleware.
Every API integration involves the same painful repetition — authentication, validating the data you send, fan-out delivery, rate limits, retry logic. We took all of it, packaged it once, and made it configurable in minutes.
And it runs both ways. EchoRelay is the target your callers hit — receive, shield, ingest — and the source that calls your services — fan out, stream a response back, or mirror a copy to a shadow.
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One request. Every shape.
Fan out to many targets, return one target's response inline, stream an SSE response back, or mirror a copy to a shadow — each target with its own authentication, headers, and retry budget.
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Validate before you deliver.
27 built-in validators cover types, formats, ranges, regex and more. Garbage never reaches your backend.
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Your keys. Your rules.
SHA-256 hashed API keys, Bearer tokens, or open access — per endpoint, per API version. Auth is enforced before anything else touches your data.
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No SDK. No lock-in.
Plain HTTP in, plain HTTP out. Change your backend without touching your callers. EchoRelay is invisible by design.
What we stand for
Three commitments.
No exceptions.
Performance
A queue-backed delivery engine that scales itself with your traffic. We obsess over latency so your customers never notice the relay exists.
Security
Hashed credentials. Encrypted external auth. GDPR-ready audit logs. Configurable field masking — log what you want, redact the rest. We are your partner, not your data broker.
Simplicity
No agents. No YAML manifests. No PhD required. Map an endpoint, set your targets, go live. If it takes more than ten minutes, we haven't done our job.
Built for everyone who ships
Whoever you are,
EchoRelay fits.
Engineering teams
Stop rebuilding fan-out, retry, and auth in every service. EchoRelay handles it once, correctly — and takes inbound webhooks behind an edge that authenticates, validates, and rate-limits before anything reaches you. Your engineers ship features, not plumbing.
CTOs & Product leads
Full observability. Predictable usage-based billing. A full delivery audit log. Manage projects, endpoints, and keys — and inspect or replay deliveries — over REST and MCP alike: your engineers from the panel, your agents from a Claude session. Same source of truth.
AI & automation builders
Route agent outputs, webhook events, and model results through EchoRelay. Validate schemas, fan out to multiple consumers, stream a model's tokens straight back to the caller, and see every attempt in the request log — no glue code to write. Or skip the panel entirely and wire your agent straight into the MCP endpoint to create projects, endpoints, and keys itself.
Where we are
Live in production.
Shipping every week.
EchoRelay is live and handling real traffic today. We built the relay we always wished existed — and then we shipped it. Every deployment makes it faster, tighter, and easier to use.
We move deliberately, we test everything, and we don't ship edges we'd be embarrassed to explain. If you find one — tell us. It'll be fixed before the next release.
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Lean, native infrastructure
Lower latency, lower cost. EU-primary today, multi-region already in the plan.
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Queue-depth autoscaling
Delivery workers scale with queue depth — automatically, instantly, without manual intervention.
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Full delivery telemetry
Every request logged, every failure traced, every retry audited. You see everything we see — nothing hidden.
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Continuous deployment
Zero-downtime rolling releases. When we improve EchoRelay, you feel it the same day — not on a quarterly roadmap.
Free
Unlimited requests, rate-limited not metered. No credit card. Yours indefinitely. Try it against real traffic.
€0 / forever
Prepaid
Buy credits in packs of 50k to 50M. Valid 12 months. +25% on your first pack.
from €5 / entry pack
Subscription
Flat monthly fee with credits refreshed every cycle. Two tiers cover the spread from a small SaaS to a high-volume platform. 50% off month one for new subscribers.
from €19 / month
Enterprise
Dedicated infrastructure, signed SLA, priority support. Pricing established individually.
Custom
Free tier requires no credit card. Pick paid when you outgrow it. Compare plans →
Ready to relay?
Drop in your endpoints and go live in minutes. No card. No commitment.